A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5925-01-532-8894
NSN 5835-01-209-6410
NSN 6650-00-462-8364
NSN 6105-01-150-6751
NSN 5835-01-383-1313
NSN 5975-01-533-1544
NSN 7035-01-202-8699
NSN 5998-01-437-6226
NSN 5935-01-324-8631
NSN 5935-01-101-3235
NSN 5930-00-829-8905
NSN 5960-00-434-0379